A preliminary survey shows that a considerable number of college students have unhealthy living habits such as skipping breakfast, drinking milk and being picky about food, accounting for 7.57%, 19.69% and 10.95% respectively. In leisure life, college students put their physical quality after cultural entertainment and going to the library. Only 19. 12% people often engage in physical fitness, and 65.68% people "feel that they don't have enough exercise", so health knowledge is easily overlooked. The survey shows that the lack of health knowledge is an important reason, which is an "invisible killer" that is easily overlooked. Because health knowledge is the foundation of sports, only by mastering health knowledge can students adjust their life rules and live, study and exercise more scientifically. Mastering health knowledge is the first step for students to take the initiative in physical exercise. Only by mastering this knowledge can people who don't want to exercise know the benefits of exercise and be prompted to exercise. Only people who like sports can choose physical exercise programs that suit them more pertinently.